Answer:
10 bags
Step-by-step explanation:
We know that one bag has 40 ounces or 2.5 pounds (40/16) of potatoes. We also know that 5 pounds of potatoes cost 4 dollars. Since 5 is 2*2.5, we know that each bag of potatoes costs 4/2 or 2 dollars (just looking at the common ratios). Since each bag of potatoes costs 2 dollars, and Larry has 20 dollars, he can buy a maximum of 10 bags of potatoes (20/2=10).